Couldn't we just come up with some convention for "expanded filenames" where the meta-data is included in the file name itself? In the UI portion, you see what you see now, no difference, but say anything after the // delimiter in the file name is considered meta data and not shown in the windows/terminal UI.

Not sure if it's a good solution but if I were to put the meta data somewhere I would somehow try to put it in the identifier of the file (the name) as it is data that would help me identify the file AND it's content!